Laserfiche WebLink
<br />. <br /> <br />Octob~T 1981 <br /> <br />. <br /> <br />SPECIAL. STUDY <br />CACHE LA POUDRE RIVER BASIN <br />LARIMER-WELD COUNTIES <br />COLORADO <br /> <br />PURPOSE <br /> <br />The purpose of this study was to analyze flood-related problems <br />and provide information that will enable local governments to make <br />decisions that will mlnlml~e or reduce flood hazards In the future. <br /> <br />SCOPE OF THE SPECIAL STUDY <br /> <br />VOLUME IV <br />FLOOD PLAIN ANALYSIS <br />FOSSIL CREEK <br /> <br />T~_ course of the study was primarily determined through coordina- <br />tion with the Omaha District, Colorado ~ster Conservation Board, Lari- <br />mer County, ~eld County, the city of Fort Collins, the city of Greeley, <br />and the Larl~er-Weld Regional Council of Governments. Numerous other <br />agencies and private interests Were alao contacted during the study. <br /> <br />Introduction <br /> <br />AA th~ ~."d" n,.,.",,...,,,,..d. .-""It. _... A..l..hd "... "<1<1..<1 in ,..""-,,,,1.,,_ <br />.. . <br /> <br />BACKGROUND <br /> <br />tionwith local Interests to respond to changes In identlf1ednee dsor <br />pt'iot'ities. Since some work it<lots w~re independent of otller ~tudy <br />tasks, the study results ate presented in four separate volumes. Vol- <br />ume I considers basin flood hazards, dam safety, and flood warning. <br />Volume II ptesents the detailed hydrologic analysis for the basin. <br />Volumes III snd IV present flood plain studies for Sheep Draw and <br />Fossil Creek, respeotively, whioh ore t~o trlhutaries of the Cselle <br />la Poudre River lying in the path of ourreot urbanization. All gee- <br />graphtc loeationsreferred to are in the State of Colorado unless <br />otherwise indloated. <br /> <br />The Cache la Poudre River baain in Colorado is in a rapidly <br />growing area. The population of LariDer and Weld Counties increased by <br />about 60 percent between 1970 and 1980. Thebasinconts1nsanm:berof <br />flood hazard sreas, from narrow canyon flood plsins in the mountainous <br />west tOlo/ide valley floodplalns in the east. Local interests are <br />ooncernedabout the changing nature of the f100dhnards in the hAstn <br />as a consequence of urban growth, particularly since the catastropllic <br />Big Tho~pson River flood in the su~~er of 1976. Discussions regsrding <br />a wide rsnglng study of the basin were initiated between the Omaha <br />Distrlet, Corps of Engineers and local planners and elected officials <br />in 1977 and a plan of study was agreed upon. <br /> <br />PURPOSE AND SCOPE OF VOLUME IV <br /> <br />AUTHORITY <br /> <br />One purpose of the Cache la Poudre River Basin Special Study is to <br />present data on existing and future flood potential for streams subject <br />to the effe~ts of increasing urbanization. 1wo strea~s in the Cache la <br />Poudr.. River basin which meet this criteria are Fossil Creek near Fort <br /> <br />. <br /> <br />1his study "as made under continulng authority in Sect:!on 206 of <br />the 1960 Flood Control Act, as amended. <br /> <br />. <br /> <br />, <br />